Silver halide color photographic photosensitive material

Abstract

A silver halide color photographic photosensitive material is disclosed, comprising a support having thereon at least one hydrophilic colloid layer, at least one layer of which is a photosensitive silver halide emulsion layer. At least 50% of the total projected area of the silver halide grains constituting the at least one silver halide emulsion layer is accounted for by tabular grains having an average aspect ratio of at least 2:1, and a yellow colored cyan coupler is contained in at least one hydrophilic colloid layer.

What is claimed is: 
     
       1. A silver halide color photographic photosensitive material comprising a support having thereon at least one hydrophilic colloid layer, at least one layer of which is a photosensitive silver halide emulsion layer, wherein at least 50% of the total projected area of the silver halide grains constituting the at least one silver halide emulsion layer is accounted for by silver iodobromide tabular hexagonal grains having two parallel planes as outer surfaces, and the ratio of the length of the side having the shortest length to the length of the side having the longest length is not more than 2 and having an average aspect ratio of at least 2:1 and a silver iodide content of 4 to 12 mol %, and the relative standard deviation of the silver iodide content between the tabular silver iodobromide grains is not more than 20%, and a yellow colored cyan coupler is contained in at least one hydrophilic colloid layer, wherein the yellow colored cyan coupler is a cyan coupler which upon coupling with the oxidized form of a primary aromatic amine developing agent releases a residual compound containing a water-soluble 6-hydroxy-2-pyridon-5-ylazo group, a water-soluble 2-acylaminophenylazo group, or a water-soluble 2-sulfonamidophenylazo group. 
     
     
       2. A silver halide color photographic photosensitive material as in claim 1, wherein at least 85% of the total projected area of the silver halide grains constituting the at least one silver halide emulsion layer is accounted for by tabular grains having an aspect ratio of at least 2:1. 
     
     
       3. A silver halide color photographic photosensitive material as in claim 1, wherein at least 90% of the total projected area of the silver halide grains constituting the at least one silver halide emulsion layer is accounted for by said hexagonal tabular silver halide grains. 
     
     
       4. A silver halide color photographic photosensitive material as in claim 1, further comprising a compound represented by formula (A):   Q--SM.sup.1                                                (A)     wherein Q represents a heterocyclic group bonded to at least one member selected from the group consisting of --SO 3  M 2 , --COOM 2 , --OH and --NR 1  R 2  directly or indirectly through a divalent group; M 1  and M 2  each independently represents a hydrogen atom, an alkali metal, quaternary ammonium or quaternary phosphonium; and R 1  and R 2  each represents a hydrogen atom or a substituted or unsubstituted alkyl group.   
     
     
       5. A silver halide color photographic photosensitive material as in claim 1, wherein the variation coefficient of the grain size of the tabular silver halide grains constituting the at least one silver halide emulsion layer is not more than 0.25. 
     
     
       6. A silver halide color photographic photosensitive material as in claim 1, wherein said yellow colored cyan coupler is represented by formula (CI) or (CII): ##STR41## wherein Cp represents a cyan coupler residual group; T represents a timing group; k represents an integer of 0 or 1; X represents a divalent linking group bonded to (T) k  via N, O or S contained in X and connected with Q; Q represents an arylene group or a divalent heterocyclic group; R 1  and R 2  each independently represents a hydrogen atom, a carboxyl group, a sulfo group, a cyano group, an alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, a carbamoyl group, a sulfamoyl group, a carboxamido group, a sulfonamido group or an alkylsulfonyl group; R 3  represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group, with the proviso that at least one of T, X, Q, R 1 , R 2  and R 3  contains a water-soluble group selected from a hydroxyl group, a carboxyl group, a sulfo group, an amino group, an ammoniumyl group, a phosphono group, a phosphino group and a hydroxysulfonyloxy group; R 4  represents an acyl group or a sulfonyl group; R 5  represents a substitutable group; j represents an integer of from 0 to 4, when j is 2 or more, the R 4  groups may be the same or different, with the proviso that at least one of R 4  and R 5  contains a water-soluble group selected from a hydroxyl group, a carboxyl group, a sulfo group, an amino group, an ammoniumyl group, a phosphono group, a phosphino group and a hydroxysulfonyloxy group. 
     
     
       7. A silver halide color photographic photosensitive material as in claim 1, wherein said at least one silver halide emulsion layer further comprises at least one other tabular emulsion having an aspect ratio of at least 2 but differing in average grain size or silver halide composition, or said at least one silver halide emulsion layer comprises silver halide grains other than tabular grains in the same photosensitive layer. 
     
     
       8. A silver halide color photographic photosensitive material as in claim 5, wherein said at least one silver halide emulsion layer further comprises at least one other tabular emulsion having an aspect ratio of at least 2 but differing in average grain size or silver halide composition, or the at least one silver halide emulsion layer comprises silver halide grains other than tabular grains in the same photosensitive layer. 
     
     
       9. A silver halide color photographic photosensitive material as in claim 1, wherein said at least one silver halide emulsion layer further comprises at least one other tabular emulsion having an aspect ratio of at least 2 but differing from the hexagonal tabular emulsion in grain structure, average grain size or silver halide composition, or said at least one silver halide emulsion layer comprises silver halide grains other than tabular grains. 
     
     
       10. A silver halide color photographic photosensitive material as in claim 1, wherein said yellow colored cyan coupler is represented by formula (CI): ##STR42## wherein Cp represents a cyan coupler residual group; T represents a timing group; k represents an integer of 0 or 1; X represents a divalent linking group bonded to (T) k  via N, O or S contained in X and connected with Q; Q represents an arylene group or a divalent heterocyclic group; R 1  and R 2  each independently represents a hydrogen atom, a carboxyl group, a sulfo group, a cyano group, an alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, a carbamoyl group, a sulfamoyl group, a carboxamido group, a sulfonamido group or an alkylsulfonyl group; and R 3  represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group, with the proviso that at least one of T, X, Q, R 1 , R 2  and R 3  contains a water-soluble group selected from a hydroxyl group, a carboxyl group, a sulfo group, an amino group, an ammoniumyl group, a phosphono group, a phosphino group and a hydroxysulfonyloxy group. 
     
     
       11. A silver halide color photographic photosensitive material as in claim 10, wherein --(T) k  --X--Q--represents ##STR43## 
     
     
       12. A silver halide color photographic photosensitive material as in claim 1, wherein the said yellow colored cyan coupler is contained in an amount of from 0.005 to 0.30 g/m 2  of the photosensitive material. 
     
     
       13. A silver halide color photographic photosensitive material as in claim 1, wherein the yellow colored cyan coupler has a peak absorption in the visible range between 400 nm and 500 nm, which yellow colored cyan coupler forms a cyan dye having a peak absorption in the visible region between 630 nm and 750 nm upon coupling with the oxidized form of a primary aromatic amine developing agent. 
     
     
       14. A silver halide color photographic photosensitive material as in claim 1, comprising a red-sensitive silver halide emulsion layer containing said yellow colored cyan coupler. 
     
     
       15. A silver halide color photographic photosensitive material as in claim 4, wherein said compound represented by formula (A) is contained in an amount of from 1×10 -7  to 1×10 -3  mol/m 2  of the photosensitive material.